You know, the csv file was exported from other database of a machine, so I really dont want to break it for it is a hard work. Every csv file contains headers and values. If I redesign the table, then I have to cut all the csv files into pieces one by one.
---- On 星期一, 02 一月 2017 08:21:29 -0800 Tom Lane <tgl@sss.pgh.pa.us> wrote ----